I am working in BI from past 3 years. I have worked in SSIS, SSRS, PowerBI and PL-SQL. I have developed 50+ reports for Maersk that was basically Crystal report migration to SSRS. Some reports were very easy and some of them are complex, As I was not aware of Crystal tool so in starting 5 days it was challenging. Though we delivered all of the reports 10 day before timeline.